Running out of Time Sig

I took this image from a Doujinshi. The first one that guesses which Doujin this is from, gets a Cookie!! ;D

[Hint: Full Metal Alchemist.]

P.S.: Full Size/Download for a better view.

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Lo saqué de un Doujinshi. Al primero que adivine de cual Doujin es, le doy una galleta!! ;D

[Pista: Full Metal Alchemist.]

P.D.: Full Size/Download para ver mejor.